[백준] 5622 다이얼

word = input()
phone = {'A':2,'B':2,'C':2,'D':3,'E':3,'F':3,'G':4,'H':4,'I':4,'J':5,'K':5,'L':5,'M':6,'N':6,'O':6,'P':7,'Q':7,'R':7,'S':7,'T':8,'U':8,'V':8,'W':9,'X':9,'Y':9,'Z':9}

result = len(word)
for i in word:
    result += phone[i]

print(result)